Knuckles’ Jewels- The Seeding Ritual (Chapter 4)
“Urgh… Ooof… Agh…” 
Rouge watched Knuckles with amusement as the red furred male cradled with blue and purple sack, which was visibly aching as the orbs within pulsed and swelled. The spike-fisted echidna made quick and light breaths in between his groans, his four-headed pride twitching with each breath. 
“Gee Knuckie, you’re acting like a woman in labor.” she teased with a smile.
The echidna rubbed his whole swollen scrotum with both palms. “Well, I might as well be a woman in labor! I’ve had these babies growing in me for months... Actually even longer since I’m literally unable to cum through masturbation… The organs that make them had enlarged to accommodate them… And my babies are squirming to get out…!” Knuckles felt a small contraction that made him go ‘Oh~!’ and mildly clutch his balls. “If it weren’t for my cock’s ‘unique quality’, I’d be squirting them all out long before now.” 
“Hmhm, I still can’t believe that’s an actual thing with you echidnas! Our sons are going to be so pent up when they come of age, the poor things.” The bat placed a hand to her mouth and giggled. “Though it’s a very good thing for us! The longer you go without cumming, the more sperm there will be to fertilize my eggs.” 
“Ngh! Never said it was a bad thing. But all the same, I’d like to empty my tanks once and for all…” 
And so the two focused their attention to getting to the Master Emerald Altar, where Tikal resided. Fortunately for Knuckles, the altar was very close by, for the red bruiser would not allow himself to live remotely far from his protectorate. In fact, the two could see the Master Emerald’s green aura glowing brightly from its shrine and followed it to the gemstone’s location. 
Which was especially useful as it had become night time on Angel Island, and the only other thing that prevented the floating landmass from being blanketed by pure darkness was the moon and the stars: a sight that Rouge could not help but constantly marvel at. Having grown up in cities all her life, light pollution made it impossible for the winged beauty to ever see the night sky in its purest form, and suffice to say that getting to see all the stars and even galaxies unimpeded was one of many bonuses to moving in with Knuckles. 
It helped that the almost complete darkness was no problem for the tan-skinned bat, thanks to her echolocation making blind navigation a breeze. And normally the pitch black nights of Angel Island were no issue for Knuckles either, the echidna knowing the entire island’s layout and details like the back of his hands. However, his rush to see Tikal combined with the increasingly tense ache of his testicles made Knux more reckless travelling in the dark, and the poor horny man ended up hitting his balls up against rough stones and pointy branches. And since the man’s jewels had grown incredibly sensitive after two months of torment, those hits hurt even more than they normally would.
The last living echidna cried out in pain and cursed each time he got his balls into harm's way, cupping them with both hands as his lower body shivered. And each time, Rouge would laugh at the echidna’s impulsiveness doing her job of abusing those male nuggets for her, with her species’ ability allowing her to ‘see’ every blow between the legs Knuckles did to himself. 
Even when they got to the stairs to the Master Emerald, Knux’s stones were not safe from himself as the scarlet spiny anteater kept forgetting how low his nuts had hung, especially after the countless stretching Rouge administered to them, and bumped them against the steps several times in his haste to Tikal. After what had to be the tenth thump, Knuckles finally got the idea to just lift his package up for the remainder of the stairs, much to Rouge’s great amusement. 
“Grr… Is this some twisted curse for having such magnificent balls…?” 
At last, though, Knux and Rouge made it to the top of the Master Emerald Altar, with the M.E. itself directly in front of them. And right on top of the massive crystal sat Tikal, with her distinctive red light shining toward the exceptionally endowed, nude couple. 
“Good evening, my friends!” the ethereal, orange female echidna welcomed. 
“Hello, Tikal!” said Rouge. 
“Hey, Tikal!” Knuckles greeted, and released both his hands from his nether bag to wave. However, the echidna underestimated how heavy his boulders were, so upon release, they dropped down hard enough to hit the ground before recoiling back to normal position. 
Knux grimaced with his eyes squeezed shut and crossed his legs as the unintentional ball slamming to the ground overwhelmed his groin and belly with agony. 
The sexy bat burst out in laughter in response. “Oh my God, Knucklehead! Leave the ballbusting to me, haha! You’re going to actually break your balls at this rate!”
Knuckles shot a glaring glance at Rouge, but then heard a familiar giggle from his front, and aimed his sights at Tikal, who smiled with her eyes closed and hand over mouth. 
“Indeed, we wouldn’t want to doom the echidna species with your clumsiness, Guardian.” Tikal hopped off from atop the Master Emerald and approached Knuckles, eyeing his enlarged, blue and purple mansack. “And on that note, I see that your scrotum and testes have undergone quite the transformation.” She then placed a hand underneath Knux’s goods and lightly gripped them, which sent a chill up the male’s spine. “A very harmed, yet pleasant looking transformation. My, my, what have you two been doing since you moved in, Rouge?” 
Rouge shrugged with a bashful expression. “Oh, you know, just getting ourselves ready for when we become the parents to loads of echidna kids. And going on many ‘dates’, since we never got to do any before hooking up. Knuckie’s balls just become like this from waiting too long to do what he needed to do.” 
Tikal snickered a bit and then stood up, releasing her hold on Knuckles’ stones. “Funnily enough, I would’ve made that exact assumption; the current state of his testicles being from his strong desire to repopulate our species and being made to wait.” The ghost girl extended her pointer finger and wagged it with a playful expression. “But I know what you two have really been doing. I’ve known about you the ‘deal’ you two made with each other, and every single action that had taken place the last two months.” 
Knuckles and Rouge blushed heavily, the white-furred bat having a face of genuine concern while Knux still had a pained expression. Tikal then continued with stern brows. “Honestly, I feel I should scold you, Rouge, for risking the continued existence of me and Knuckles’ species like this. Beating and yanking his seedmakers like that…” 
Rouge’s expression turned more worrisome, but then Tikal softened her brows and grinned at the bat. “Yet, at the same time, I can’t blame you at all. After all, Knuckles… Or, more accurately, WE, did come to you to abandon your established life and become a ‘baby factory’ for echidnas. So you do deserve compensation for that, no matter how…” The tribal princess then reddened her cheeks and drew her brows together. “And I must admit, I share in your enjoyment of testicles being harmed.” 
Both Knuckles and Rouge adopted looks of confusion, but while Rouge soon showed relief, Knuckles only became more confounded. “...Seriously...?” The spiky monotreme asked in a flat tone. “I thought you oppose any and all violence.”
“I-I do! Don’t get me wrong. It’s just… I’ve always been amused by the nature of testicles. They’re the most valuable and important body part for you men, but they hang between the legs in such a vulnerable way. So a part of me can’t help but want to see those organs receive the pain they expose themselves to, and take pleasure when the pain does come…” 
Rouge smirked. “Huh, and here I thought I was the only one who felt that way. Good to see a fellow bright mind!” 
Rouge shot Tikal a wink, to which the female spirit blushed harder with a flattered smile. “Hmhm, well it’s not entirely just for that reason. Let’s just say that it’s only because I was the Chieftain's daughter that I was spared from testosterone-fueled abuse from the men of my time. And it was testosterone that helped influence ill desires that doomed others: such as my father’s decision to raid the Master Emerald and seize the Chaos Emeralds for himself, which caused the decimation of our species that you two have the burden of undoing…” 
Rouge nodded in understanding to Tikal’s second given reason. Knuckles opened his mouth and raised a pointer finger to object, but couldn’t utter a rebuttal after thinking Tikal’s reasoning through. As beneficial as testosterone was, the hapless male could not deny that it was the source of much suffering for women throughout history, thanks to countless men of the past letting their testosterone control most of their thoughts. And even in the present era, testosterone continued to be a big contributor to female hardships. And in that sense, the red echidna could not fault the two women for their desire to see testicles punished, as unfair as it was to him. 
“Now then!” Tikal clapped her hands together, which did not produce a sound due to their airey nature. “I take it you two have come to me because you’re both ready to start the repopulation?” 
“YES!!!” Knux shouted at the top of his lungs, his quad-headed dick stiffening itself in readiness. 
Rouge and Tikal flinched from Knuckles’ sudden volume, and almost immediately Rouge reared her right foot to deliver a fierce kick in retaliation for the unintentional spook. But just as quickly, she decided against that, taking into consideration that her mate had gotten more than his fair share of ball abuse. 
“Er, sorry!” Knuckles scratched the back of his head with a simper. 
The nudist bat shook her head with a hand to her cheek and grinned at the male echidna, then turned her attention to Tikal. “But yeah, we're definitely ready to get breeding new echidnas. I even feel my ovulation has started! Sorry it took so long, though; I had to get Knuckie's boys in the perfect condition before I could accept his sperm." 
"Oh, it's alright, Rouge! With an end result like that, such a delay was very much worth it.” Tikal poked at Knuckles’ swollen purple and blue nuts, much to his chagrin, then looked back at both mates. “And actually, it’s a good thing you two decided to wait two months before taking action, for it took me longer than desired to set things up for you two.” Tikal winked, and kept that one eye closed as she shrunk in size before becoming a red ball of light: a form that Knuckles recognized from the ‘adventures’ in Station Square. “Come with me, and the Seeding Ritual can commence!” 
The spirit in her sphere form led Knuckles and Rouge behind the Master Emerald and to the top of a flight of stone stairs, that were even more lengthy than the one the male echidna and female bat took to enter the giant gemstone’s altar. Tikal then floated down the rock steps, but the couple focused on the stairs themselves: Knux in particular sweating with a nervous look. 
“Hm, guess I’m going to be carrying my testicles to use the stairs again… But it’s so humiliating… 
“Honey, you’ve traveled across most of this darn island with a leash to your balls, among so much more, and you find that humiliating?” Rouge chortled while Knuckles looked away in dismay. “But if you’re looking for an alternative to going down these stairs, allow me to provide an idea…”
The naked, DD-cup bat lifted herself into the air with her leather wings and glided down the stairs. Knuckles watched Rouge soar all the way down to the ground, and got inspired to do the same with his glide-capable echidna spines (or ‘dreadlocks’, as they were often called) to avoid bumping his massive, low-hanging jewels against the stone steps again. 
Knux jumped up and caught air underneath his dreads, then pointed his fists forwards with his legs lifted up back to drift down alongside Rouge. Right after starting his glide, though, Knuckles felt his descent get faster and faster at a quick rate, and felt the air escaping from his dreadlocks. In that moment, the nude male realized that, thanks to their great size, his testicles were literally a heavy set, and so were weighing him down. 
Next thing Knux knew, he was plummeting straight down and landed on one of the altar steps with his balls, then started rolling down those stairs; his oversized man nuggets slammed onto the stair edges with each roll downward. Upon reaching the bottom of the stairs, Knuckles landed on his bottom, right on top of his nuts.
The roja echidna grabbed at his orbs and opened his mouth to scream, but nothing came out. After much shouting and howling from testicular agony, Knux had pretty much run out of screams to make, and so could only squeal and whimper instead. 
Rouge had seen that whole occurence and immediately flew to the writhing Knuckles. “Holy crap, are you okay? I hope neither of your goods popped from that...” 
Knuckles groaned as he felt at his testes to make sure they were still intact. The echidna had to press a bit hard with his fingertips, much to his agony, but he soon sighed with relief. “I feel firm roundness in both sides of the sack. I’m still whole. Thank all the heavens and gods…” 
Knux spread out his arms and legs and laid on the ground, processing the pain that burned the entirety of his genitals and abdomen. Rouge bent down to the echidna and extended her arm, to which he grabbed. “Oh good! I was actually worried there.” She then pulled him up and carried his staggered self over her shoulder. “You got some seriously durable gems there, Knuckie! But even the strongest diamonds crack and break under the strongest pressure, so let's try to stop busting them, hmm?" 
Knuckles cackled. “You’re telling me to stop busting my balls? You’re the only reason they’re this vulnerable!” 
“Point taken. But I know my limits, and I’ll not be busting your balls for the rest of this evening. Not after you’ve managed to damn near break them on your own.” 
Knuckles and Rouge shared hearty laughter as they resumed following Tikal, in her light ball form. However, as it would turn out, the place Tikal was leading the two was just behind the Master Emerald’s altar, and they made it halfway there just by descending the stairs. 
The female ghost echidna shifted back to her true form and giggled at the soon-to-be breeders. “Fortunately for you, Knuckles, your precious stones will receive much needed healing very soon.” Tikal moved aside and moved her hands to present the area to the spiny stud and sexy bat. “I welcome you both to the newly established ‘Garden of Life’!”
Knuckles and Rouge walked toward the garden a bit, then both stood still to take in the scenery, which was a sight to behold. The ‘Garden of Life’ was a Chao Garden, an area with a pure source of water that attracts the Chao; the source of pure water in this case being a few small waterfalls that all flowed into a pool of water: which was large in size, easily taking up the majority of the Chao Garden. The air of the garden was dense with mist produced from the waterfall, and the borders of the Chao habitat surrounded by rainforest trees. 
In the center of the body of water was a circular stone platform big enough for just two people to lie on. Surrounding the platform was a tall yet thin aqueduct-like structure, which had two ends that carried water from the waterfalls and made them flow in a complete circle, in which the water pours down around the platform below like mini waterfalls. Notably, barriers were constructed within the inside portion of the aqueduct circle, making it so there were seven gaps in what otherwise would have been a circular wall of water. 
And there was a reason for those seven gaps, for at the edges of the pool, surrounding both the platform and the aqueduct, were seven tall pedestals that were positioned exactly where the gaps of waterfalls from the aqueduct were. And placed on top of each pedestal were the Chaos Emeralds themselves; all seven of which, alongside a few wooden torches, were the only sources of light for the area as their colorful radiances pushed away the obscuring darkness. 
“The Chaos Emeralds?!” Knuckles and Rouge shouted in unison, both doing so with looks of surprise. 
“Ah yes, those sacred emeralds were the hardest and longest part of setting all this up…” Tikal mused. 
“No kidding!” said Knuckles. “How’d you manage to get them all?” 
“Why, I had some help, of course!” 
Tikal turned to the water and made a single nod with sincerely clasped hands. Suddenly, the water at the edge of the pool started moving upward and formed into what looked like an arm with a three-fingered hand, which then slammed down onto the land. Then another watery arm manifested and pressed into the ground next to its counterpart, and right after another familiar face pulled itself from in the water: Chaos, the alleged ‘God of Destruction’. The humanoid water elemental, with its distinct pure green pupils and exposed brain (thanks to his transparent head), plopped its large feet onto the ground and approached the three in a sluggish manner, owing to its liquid physiology. 
Once Chaos got up next to Tikal, the former tribal princess turned back to a stunned Knuckles and Rouge. “Chaos not only helped me with making the stone structures you see before you, but he collected most of the Chaos Emeralds the past two months, with his slippery nature and affinity for the gems proving most effective.” 
Knuckles crossed his arms with a smirk. “Heh, yeah! I haven’t forgotten how fast Chaos was able to collect all the Chaos Emeralds back in Station Square during ‘that’ time.” 
“But why?” Rouge queried. “Wasn’t Chaos the reason you guys are threatened with extinction to begin with? And I’m pretty sure you had told us before, Knuckie, that Chaos only appears in times of great crisis.” 
Chaos spoke to answer Rouge’s questions, however since his words came out as gurgles and drips of water, the bat nor her male companion could understand the aquatic elemental. Tikal sighed at the two’s obliviousness and explained on behalf of Chaos. 
“Actually, my father and his men were the reason our species were threatened with extinction, with their evil action causing Chaos to lose his mind with rage. But regardless, Chaos had harbored extreme guilt for his part in the echidna decimation, and immediately offered his help the moment we started our repopulation effort.” 
Chaos nodded to confirm Tikal’s words, and then she pressed her fingers together with an embarrassed expression as she continued. “In fact, this Chao Garden was one of Chaos’ favored spots, and he lent it to us specifically for this purpose!” 
“Oh cool!” Knux raised a thumbs up in Chaos’ direction. “Thanks a bunch, Chaos! I’ll be sure our descendants know your part in saving our species you very nearly rendered extinct, albeit thanks to one of our own.” Chaos rubbed the back of his head with squinted eyes, and it would have blushed if it had functioning cheeks, and then Knuckles turned to Tikal. “But alright, this cock and these nuts have waited long enough, and we’re losing moonlight! So, what do Rouge and I have to do to keep the echidna genes from being overridden in the long term?” 
“Oh right!” Tikal cleared her voice with an ‘ahem’. “Okay, Knuckles, all you and Rouge have to do is mate on that platform there.” Tikal pointed to the aforementioned, then turned back to them and continued. “While you two do that, I will perform a ritual with the power of the Chaos Emeralds to cast a powerful enchantment on your testicles so your current and future sperm will always be conceived as pure-blooded echidnas. Rouge’s own genes would still very much be a part of them, but her bat specific traits wouldn’t have an effect on your children.” 
Rouge placed a finger to her chin with her head pointed down. “So... This enchantment would essentially make it so Knuckles’ kids are conceived and born as if their mother is a female echidna, even if she isn’t one at all?” 
“Correct! And even better, this enhancement will pass onto those children and provide the same effect, and so on! This way, no matter how many other species’ traits may comprise any of your descendant’s genes, they and their children will still be pure echidnas.” 
“And so the echidna race is truly spared from extinction!” Knuckles beamed with a big smile.
“Heh, and to think I nearly had Knuckles go get himself cloned to save you guys from extinction. But your ‘magical’ method is a whole lot more effective!” Rouge stated with confidently crossed arms, but then she looked to her womb and rubbed it with curled up brows. “Not gonna lie, though, I was expecting to have a few bats alongside the many echidnas… And what will keep this enchantment from making you guys breed out everyone else?”
"Oh! Don't worry Rouge! I've already had it in mind to set a condition for the enchantment so the ‘breeding echidna’ can allow for a child of the partner’s species to be conceived. So you can still bare pure bat children, or a genuine hybrid, so long Knuckles wills it so. And the enchantment will also ‘expire’ after we have enough genetically diverse echidnas to sustain a healthy population for us.” 
“Oh! Okay! And Thanks Tikal! You’re so considerate! But will you be as considerate, Knuckles...?” Rouge blinked both eyes as if she were a child using her innocence to get what she wanted. 
Knuckles chuckled at her gesture. “Of course I will! I’m not going to deny you the kids you want, and I would like to father some bats. After we get enough echidnas first.” Knux winked at the naked, tan bat.
“Obviously.” Rouge winked back. “I wouldn’t have it any other way!”
A brief moment of silence passed between all parties, which then ended when Tikal slapped her palms together to catch the other three’s attention. “Okay! Just one more thing before we get started; since I’ll have to be… Uh, ‘presiding’ over your mating in order to in order to enact the ritual for the enchantment… Well, I’m hoping that this will be enough to reduce any ‘stage fright’...” 
Tikal moved her hands to the waist of her dress and pulled them down to the ground, then stepped her feet out of the discarded bottomwear. Chaos moved to in-between Knuckles and Rouge, and all three watched with curious looks as Tikal removed the rest of her clothing. After her tribal dress, Tikal lifted her royal necklace and ‘tiara band’ off from her neck and forehead respectively, and gently placed them onto her discarded dress. Then she pulled her ‘tank top garment’ up by the bottom over her head: the echidna’s C-cup breasts jiggling into view upon the garment’s removal, and swayed when Tikal shook her head to move her spines from her face. 
After dropping her top onto the ghostly cloth pile, Tikal got onto her bum and pushed down the straps of her sandals to free her legs and feet, during which the three onlookers could see Tikal’s vagina. Rouge took particular notice of Tikal’s intact hymen, which covered the entire inside of the echidna’s pussy save for the urinary hole. The bat placed her cheek to her palm and looked at Tikal’s unpopped cherry with a solemn expression. 
After getting her footwear off of herself, Tikal removed her gloves and bracelets, placed them with the rest of her ethereal clothing, and stood back up with both hands to her crotch and a heavy blush. “Th-there… Now you two needn’t worry about me watching your intimacy while I work the ritual…” 
“Oh Tikal…! You didn’t need to worry about that!” Rouge giggled a bit. “I was actually looking forward to you watching us making babies when Knuckie recruited me for the echidna repopulation!” Rouge gave the female echidna a wink. “But do please stay naked. You look way more beautiful in the nude, and I mean that in a very sincere way.” 
Knuckles leaned over to one side of Rouge and looked at Tikal with deadpan eyes. “Trust me, she does.” 
Tikal cheeks turned to a deep red, and she placed her fingertips to her lips with a hunched head. “Oh… Well then, there’s just one more thing. Which I'm afraid you won't enjoy, Knuckles… For the enchantment to be cast, you two must be engaged in vaginal intercourse, as a sort of ‘dance reagent’. But the ritual takes a while to be completed, and should you ejaculate before it’s finished…” Tikal paused to think of how to further explain, then bashfully closed her eyes and rubbed the back of her head. “Well, I think you get the idea…” 
Knuckles sighed and looked at his yearning genitals. “So I have to wait just a bit longer to cum, huh...? I can try, but I don’t think my boys will be able to hold back the tsunami…” 
All of a sudden, Rouge gripped the base of Knux’s dick tightly, to which his four heads puffed up and the echidna himself contorted. “Don’t worry, I’ll make sure those ‘boys’ wait patiently before finally getting their release. I’m sure by now they view me as their mistress and will do as I say, right hun?” 
“Urk…! R-Right, babe!” 
With an affirming nod, Rouge released her grip on Knuckles’ echidna dick, when all of a sudden a thought came to her. “Oh! Before we really get started…! Is it possible we can move that Master Emerald to that platform, and we make our babies on top of it…?” 
Knuckles, Tikal, and Chaos simultaneously adopted faces of pure shock, then Knux spoke up. “Are you completely serious right now, Rouge?!” 
Sweat of nervousness manifested all around the bat’s head as she shrugged. “I-I mean no offense! It’s just that it’s been my dream to have sex on top of that jewel to end all jewels! After all, it can fit both of us, can’t it? And I bet it feels exhilarating!” 
“Still! Only reason I allow you to bust my balls is to compensate for the pain and annoyances you’ll endure with this repopulation, but I draw the line at…!” 
Tikal waved her hand up and down. “Now, now, Knuckles! It’s no big deal! Really.” Knuckles looked at Tikal with perplexed brows. “Contrary to modern sensibilities, the people of our time viewed sex, especially of the fertile kind, as a holy activity, and the Master Emerald still holds to that value! So the gem perfectly welcomes breeding atop itself. And, as you pointed out, Rouge would be enduring much for the sake of our species. The least she deserves is a fulfilled desire. The M.E. could also help ensure this ritual goes as intended with all desired effects.” Tikal turned to Chaos. “So, my old friend; would you be willing to move the Master Emerald from its pedestal up there and onto the platform in the pool?” 
Chaos moved and gurgled in a way that conveyed a sigh and reared back his arm and hand. Within an instant, Chaos’ hand enlarged to a size much larger than all four of their bodies, and launched it over to the Master Emerald all the way at its altar. Within just a few seconds, the giant crystal was moved from its pedestal in the hill-like construct, all the way down to the center of the Chao Garden pool; the platform that was there being reformed into a new pedestal for the M.E. 
“Thank you, Chaos!” Chaos nodded with halfhearted drips, then Tikal turned to the nude couple. “Anything else needing to be done?” 
Rouge shook her head. “Nope! That’s all I wanted.” She turned to Knuckles. “And just know Knuckles is itching to get started.” The aforementioned confirmed the bat’s guess with a nod.
Tikal slapped her palms together for a single clap. “Okay! Then we can truly begin!” Tikal put her palms together once more, this time with a much softer impact and doing so in a prayer pose. Almost immediately, her hands glowed with a red shimmer. “Alright, for the first part of the ritual, you two must now do erotic dances of your choice and try to arouse each other in doing so. The rhythmic movements combined with the sexual desires will empower the mystic energy I’m channeling right now, and once it begins to envelope the aura of this whole garden, we can move onto the next part.” 
Rouge placed a finger to her chin with a seductive smile. “Erotic dancing, huh? I know plenty of those~!” 
The tan, naked bat then began to dance like she was in a strip club; swinging her hips left and right, putting her hands to her thighs, and making her pussy lips and tits jiggle in a hypnotizing tempo. 
Knuckles, on the other hand, rubbed the side of his head. “Huh… Not much of a dancer myself…” The echidna pressed harder on his head when his eyes jolted open with an ‘Oh!’, then he placed his hand down with a smile. “But I did see some moves that I know Rouge will love!” 
Knux got into a sort of squat with his hands behind his head and began pelvic thrusting; pumping his hips forward and backward, with a particularly powerful push forward to emphasize his manhood. The male would have been doing this move with greater speed, but thanks to his heavy hanging, free-swinging orbs, Knuckles had to move his waist in a rhythmical way for effective swings. The claw-fisted fighter blushed with a nervous smile as his very solid schlong poked at his belly with each twerk forward.
Just as the man expected, Rouge nearly drooled at the sight of those nuts waving between his legs, and was mesmerized by his prickly stiff moving up and down with his hips. Seeing fit to up the ante, Rouge began shaking her upper body with great fervor; making her breasts effectively vibrate. 
Then it became Knuckles’ turn to be hypnotized as his eyes followed Rouge’s nipples flutter in all directions on their spacious homes. The movements combined with the erectness of the nips and puffy areola would have made Knux blow his load right then and there if his unique dick did not actively prevent that, and so the echidna flinched as the testicles become congested with cum and turned ever more blue. 
Yet, when the mild pain subsided, the roja male smiled at his dance partner and proceeded to take things up a notch himself. Knuckles figured he could return the favor and captivate the bat with his own chest. But he knew that would not be enough since Rouge only had eyes for his groin, and there was only so much the spiked warrior could do to draw Rouge’s attention to his lower goods than the twerking he was already doing. 
After some thinking, the man pumping his chest in between pelvic thrusts in the meantime, Knuckles recalled a particular dance move of a music celebrity who was exceptionally popular during the time the echidna first met Sonic. And so Knux smoothly moved his right hand to the bottom of his sack, cupped his right nut, and lifted it up with an ‘Ow!’ 
The big balled echidna, of course, meant to utter ‘Oh~!’, but even a mild action like that to his ‘cum-stipated’ goods hurt like no tomorrow. Lucky for him, the ball grab was worth the pain as Rouge moaned aloud to the sight with a lustful tone. Knuckles formed a pained grin at his mate’s response, and then grinned even more as an idea to excite his mate even more manifested.
With that, Knuckles swiftly moved up his groping hand whilst pressing up against his testiculars (much to his agony), then did a split: jumping up with legs spread to the side, and landing onto his crotch; his purple and blue melons getting squeezed underneath his pelvis. Knuckles bit at his lips as the urge to scream overcame him. But he successfully resisted, and Knux got to take in Rouge’s response to that ball splitting split: a euphoric shrill with lewd sweat dripping down her face. Afterward, Knuckles stood back up and jumped once more, but this time got into a one-armed handstand; using his right arm and hand to support his upside down body, and spread his left arm and both legs out side-to-side. 
Rouge watched Knux with great interest as the bottom-side-up male curled his body to get his waist closer to his face and reached for his massive sack, which hung over his butt cheeks, while maintaining rhythm. Upon grabbing hold of his freshly harmed goods, Knuckles pulled them forward and over his south-pointed erect cock, and finished off his ‘dance’ with a forward thrust of his hip: presenting his lover the look of his swollen, newly bruised jewels hanging upside down over his massive, four-pronged dick.
Rouge’s eyes bulged open as she took in the display her greatly endowed mate was giving her, and cupped her cheeks with a louder moan escaping from her lustful smile. The bat felt some pressure build up in her genital region, and right when the thought of groping those bottom-up hanging orbs crossed her mind, lady juices erupted from Rouge’s pussy: soaking the between side of her legs and the ground beneath her. 
‘Oh-oooh~!’ Rouge uttered as her orgasm finished, and the energy within Tikal’s palms turned to a darker red and became bigger. “Yes, good!” she shouted. “Keep it up you two! You gotta really turn each other on!” The female echidna slightly cringed after that sentence, then spoke under breath. “Goodness, did I seriously just say that…?” 
Chaos let out a watery sounded that resembled heavy laughter, and Tikal turned her head to him with furrowed brows, a frown, and reddened cheeks, whilst keeping her palms together for the ritual channeling. Meanwhile, Rouge tried to think of a way to get her male mate turned on ever more. The au natural bat glanced around the whole garden when her eyes settled on one of the pillars holding up the Chaos Emeralds. Immediately, an idea came to Rouge’s mind, and the bat moved on over to the thin structure. 
Upon grabbing hold, Rouge began doing what the three onlookers could not see coming; the bat used the rock column to pole dance! Knuckles, Tikal, and Chaos gasped at Rouge as she spun around on the stony bar with her huge tits and plump nethers right up against it; the woman moaned aloud in ecstasy from the feeling of the rough, mineral textures sanding at her clit and cleavage. Then Rouge went on to perform all the famous pole dancing techniques; lifting her whole lower body up with just her arms, spreading her legs wide whilst spinning around the pole (flashing her dripping pussy at the onlookers), then wrapping her legs tightly around the pillar and rearing her head back to raise her breasts to the air, and grinding her groin against the column as if it were a giant cock. 
Knux became incredibly aroused from Rouge’s makeshift pole dancing, and even Tikal and Chaos could not help but be enticed by the bat’s actions, with Chaos’ watery cheeks simmering. Knuckles’ testes and echidna-hood convulsed with desire from Rouge’s exotic dance with the Chaos Emerald pillar, and the echidna male wished that Rouge could do her dancing on his pole: with the addition of stroking and kissing. 
Once Rouge had done all the pole dance moves she knew, she jumped up from off the stone column and took flight to dance in the air. The bat’s audience watched with both arousal and awe as Rouge performed a mid-air, solo equivalent of synchronized swimming, doing all the same positions as the aquatic activity; Crane, Ballet Leg Double, Knight, Side Fishtail, Flamingo, and Split. Not only was this a great demonstration of skill and control with flying for Rouge, but it got her male mate even more horny as she gave him a long view of her underboobs, as well as the teasing imagination of how her babymaker looked like in the midst of those positions. Rouge then began breakdancing mid-flight, managing to pull off fast spins as if she were on a slippery ground. The female bat then ended her flying dance by spinning upside down whilst descending to the ground, then landing to the ground in ‘the sexy pose’.
‘Ooohh!’ Knuckles exclaimed, and the man clutched his entire groin and got to his knees as the urge to cum overcame his loins. The heads of his penis pumped with urgency, but not even pre-cum escaped from their holes, and so the man’s balls grew to a darker purple and blue color. But in an unexpected twist, his entire unit turned to a red color as well, almost blending in with his red fur. 
Right after, the red energy within Tikal’s closed together palms expanded once more, this time encompassing her hands. The energy also began to exert an increasingly strong force, as the ancient princess’ hands shook after the envelopment. The female spirit smiled at this development and, after pressing her hands together to focus the energy, released her palms from each other and let loose the dark red energy into the air. 
“And with that excellent dancing, the first part is completed!” 
Everyone looked up at the red mystical energy and watched as it gathered in the air above the whole pool, forming a sort of cloud that resided within the boundaries of the Chaos Emeralds that circled the garden. 
“If I didn’t know any better, I’d think we were summoning demons or doing a blood sacrifice.” Rouge snarked. 
Tikal looked at Rouge with a sly smile. “How do you know we aren’t?” The bat beauty and male echidna looked at Tikal with looks of shock and disbelief. After a brief moment of silence from all four, the orange-hued spirit laughed. “Kidding!” Rouge, Knuckles, and Chaos chuckled alongside Tikal, and then the ghost girl continued. “But no, the mystic energy is red because that is the color of ‘sexual desire’. And since we’re using the mystic energy for a sex-based ritual, that is the color it takes on!” 
The brown-toned bat winked at Tikal. “Gotcha!” She then walked over to Knux, who still cradled his pulsating male organs. “I guess that explains your incredible sex parts, Knuckie.” The crimson male simply smiled at Rouge in response. 
“Now then!” Tikal announced. “We move onto part two of the ritual…” Knuckles and Rouge turned to Tikal to give her due attention, and then the ethereal girl continued. “With the mystic energy has been properly charged, it must now be infused with the Chaos Emeralds so they will lend their power for our exact purpose. To that end, you two must do some foreplay, which will affect the energy in a way that allows me to infuse them with the emeralds.” 
Knuckles raised a brow. “Foreplay, eh? Like what we’ve been doing for the past two months?” 
Rouge steps up to Knux from behind and places a hand to his shoulder. “Obviously! But something tells me that, this time, you’ll be licking into my pussy, instead of just me sucking at your cock to blue your balls. Among other things…” 
Tikal nodded. “Correct! Your foreplay must not be one-sided, but done equally to each other. A blow job must be reciprocated with cunnilingus, and so on.” 
“Hmhm, good!” The bat lady licks her lips. “I’ve waited too long for my taco to get eaten!” She then holds one of her breasts up with one hand while putting another hand to her womanhood, the fingers just barely inside the hole. “And I know a few things we could do to spice things up even more.” 
Knuckles grinned. “Heh, I’m starting to be glad we have to do this ritual.” He then muttered under his breath. “Even if it means more painful blue balling…” 
Rouge walked over to the edge of the pool and dipped her big toe into it. After pulling her toe out, Rouge glanced over to Tikal, who had her hands spread out to opposite sides. “Hey spirit girl! Is it okay to do the foreplay in the water?” 
Chaos’ eyes went completely open and turned his head to Tikal, who smiled at Rouge. “Why of course! Whatever turns you on most, echidna brood mother.” The water elemental flinched at Tikal’s answer and protested to her in his ‘language’, to which she glanced at him with narrow eyes. “Oh relax! Even if foreplay and sex were truly dirty, it won’t ruin the water’s purity for the Chao. Besides, if you didn’t want this to happen, you shouldn’t have caused this event in the first place by decimating us to near extinction.” 
Chaos rubbed the back of his head with lamenting eyes, and both he and his ghostly friend watched as Rouge sat on the edge of the pool, submerging her lower leg into the water, and directed Knuckles to get into the clear liquid, to which he did by hopping in. 
As was typical of Chao Gardens, the pool was fairly shallow, and so the roja spiny-anteater stood up within the water, reaching just above his waist. Knuckles let out a relieved sigh as his submerged, aching orbs were soothed by the cool and pure fluid. And Rouge let out a pleasured hum as she eyed at said orbs and his cock, the tip of which poked out above the surface. The bat could feel her clit and nips erect from Knux’s nethers in the clear water, and she instinctively spread her legs apart whilst leaning her torso back. 
“Okay Knuckie… I’ve been the dom for too long… So for the rest of this ritual, I’ll let you be the dom, and I’ll submit to whatever you want…” 
Knuckles perked his head in response. “Cool! But… What do you mean by dom?” 
Rouge lifted her leaned back head back upright and looked at Knux with deadpan eyes. “Like dominant. I was the dominant in our relationship, so for the first time ever, you’re the dominant, and I’ll be the submissive one. Also known as ‘sub’.” 
“Oh! …And I just ruined the mood, didn’t I?” Rouge nodded with a face of pure disappointment. Knuckles blushed with a rub of his neck, but then punched a fist into his palm with a smirk of confidence. “Alright then, allow me to un-ruin the mood! I’ve been wanting my tongue in your bat tunnel since we started this deal, and I want to taste all of it!” 
Rouge did as Knux commanded as he waded over to her, getting her legs as wide apart as was comfortable to her. Much to her surprise though, once Knuckles got up to her, he put his hands to her thighs with the firmest grip and spread them further, getting an ‘Oh~!’ out of her lips. The super strong echidna then moved his hands to the bat’s labia, placed all his fingers to those lips, and opened them up to their absolute limit.
The bat moaned aloud in a mix of pain and pleasure as her tan pussy is opened up by her spike-fisted mate, and was nothing short of astounded by how much of a dominating force Knux was becoming. Rouge could not help but speculate that the only reason she got away with all she did to the man’s balls was only because he allowed it, for the sake of his species. 
Knuckles too became astounded, but at the sheer tightness of Rouge’s pussy. When the bat told him that her vagina was extremely tight, she was not joking. He could not spread it open more than a few inches without full on hurting Rouge, and the resulting hole was a smaller width to his dick, from tip to base. The thick set male questioned if he could even manage to fit his cock in Rouge’s pussy, and he started to hope that Rouge was right about her vag becoming flexible during birth. 
But Knux could not dwell on that subject for much longer, for he had some pussy to eat, a woman to please, and dominance to assert. And so the echidna moved his nose just outside Rouge’s opening and took a big sniff. Rouge blushed as her mate took in her vaginal scent, and Knuckles sighed with great satisfaction. The male’s erection became more pronounced as the sensation of the smell of Rouge’s snatch traveled through his body, and Knux’s whole genitalia could sense the bat’s ovulating from the scent, and became extra excited. 
After getting that whiff, Knuckles was all set to chow down, and promptly got to work by bringing his mouth to Rouge’s cunt and extending his tongue into it. Rouge threw her head backward from the feeling of the echidna’s tongue inside her most sensitive part; her feet and toes wriggled and the female bat went into a moaning fit as Knux licked all around her inside. And then she felt it getting deeper… 
“Ahhh my god, Knuckie~! I can feel your tongue reaching my cervix~! How the fuck…?” 
Knuckles grinned cheekily as he indeed was reaching his tongue all the way up to Rouge’s cervix, and proceeded to directly lick the cervix to get a rise out of Rouge. And boy did he get a rise out of her, as each lick to her cervix, alongside her vaginal walls, made Rouge increasingly arch her back and go 'Oh~!' with an increasing volume. 
Soon enough, the red echidna had his fun and retracted his tongue back into his mouth. Rouge panted as she processed what her crotch just experienced. "Holy crap…! As if your balls and dick weren't enough, but you got one hell of a tongue too?" 
"Heh, didn't you know? The prehistoric ancestors of the Echidnas evolved to eat ants, and one of the key things we inherited from them were long tongues. We also had spines on our tongues to catch those buggers, but sadly we lost that adaptation when we began eating other things." 
"Well! You Echidnas keep on surprising me in very pleasant ways! And while tongue spines would've been great, the length more than makes up for it." 
“Good to know! Now, let me have a taste at your clit!” 
Knuckles descended his mouth onto Rouge’s vulva again, this time enclosing his lips around the bat’s clitoris with a joking 'Chomp!'. The Rad Red then began sucking on Rouge's clit with intense force whilst licking it. 
Rouge clutched at the ground and her entire lower body shivered as her mate went to town on her pink orb. The brown-toned bat could feel that echidna’s tongue reach into every fold of her exposed pleasure gland, and felt as if her clit was going to pop out, or even pop off of her, from Knuckles’ powerful suction. The bat’s pearl, and her nether lips, began to expand ever more from this stimulation, and her vaj releases more juices. 
“You’re a beast, Knux! Please, don’t stop!” 
Knuckles pressed his mouth down harder onto Rouge’s crotch and sucks with even more force, letting a slurp or two escape. The fembat squeezed her eyes shut and full on wriggles and screeches from pleasure. Tikal watched this go on in the midst of channeling the energies, and her mouth increasingly opened with desire. 
“G-Goodness… What I wouldn’t give to be flesh and blood again…” 
The peach-colored echidna’s cheeks reddened and her groin began to glisten. Chaos took notice and bubbled to Tikal in a questioning tone with a curled ‘brow’. She blushed harder in response and turned to him. “Wha-?! No! I-I’m not getting turned on! ...And don’t question how I’m blushing as a ghost, you won’t be able to understand.” 
Chaos sighed, and both turned their attention back to Knuckles and Rouge, with the male having finished his sucking on the bat’s pink sphere with a loud and content ‘Aaah~!’. “Of all the things I’ve tasted, that was one of the best!” 
Rouge blushed. “Mm, I do try to keep my flower juicy and flavorful.” The bat placed a hand to her crotch and circled her opening with her fingers. “Now, how about finishing the job? I was getting close to climaxing…” 
“Hey, we switched roles! Remember? I’m the one who decides what to do.” Rouge glances aside with drooped ears. “I’ll keep up the pleasuring, though.” 
With that, Knuckles once more bent down over Rouge’s vulva, his hands to her thighs, and then lifted up one of those hands with all fingers extended in a flat manner. ‘Ooh’ went Rouge, as she caught on to Knux’s intention, and then the scarlet bruiser began inserting his hand into the bat’s opening. 
Rouge sensually moaned as Knuckles slowly but surely moved his four fingers into the bat’s peach, which was a much tighter fit than would be for others due to the narrowness of Rouge’s poon and Knux’s hands being larger-than-average (an adaptation of the echidnas for easier digging). But the red echidna managed to get those four fingers inside soon enough, and only had to get the rest inside. Before he could try though… 
“You’re not thinking of getting those ‘spikes’ on your knuckles in me, are you? That shit will tear up my sugar walls.” 
“Oh! Don’t worry!” Knux winked at her. “I can soften these claws
Knuckles proceeded to wiggle his fingers within the bat, practically tickling her whole vagina. His fist spikes also made Rouge lose her mind, needless to say, as she threw her head back and shrieked to the sky in euphoria and unconsciously twitched with excitement at each movement of Knux’s fingers within her pussy. The echidna smiled devilishly the whole while, trying to dig his hand deeper into Rouge. With her vaginal fluids acting as lube, he is soon able to work the fat part of his hand all the way to the wrist, to the sheer delight of the bat.
Rouge filled the area with moans. “Do it! Give my baby maker those world famous punches!”
“Can do, my sweetheart!”
The emboldened echidna started shoving his massive fist up and down the bat’s birth canal. While it would be normal for something as big as a fist to put a whole lot of pain on a lady’s baby maker, the overloaded amounts of lust in the air that the duo were producing filled Rouge’s nerves with endorphins, preventing her from feeling any pain at all. She shrieked with each punch the red love machine delivered into her. Perhaps it was payback for all the times she stole from him, or the two rough months of ballbusting, all they knew was Knuckles did not hold back on slamming her womb. He punched her as fast and as hard for as long as he could until he stopped to pant. His hand ended up covered in her fluids, which let him pull back to just the tips of his fingers sticking in her womb.
Knuckles gave an audible phew in tiredness. “Whoa. Fisting your womb tired out my arm.”
Rouge’s libido calmed back down enough to let her form more conscious thought, and only one thing was on her mind. “Mmm, your turn, Big Red.”
Knuckles’ body acted on instinct, knowing what she meant as his legs spread apart. The bat planted a kiss on each of his heads, letting them know what was to come.
The echidna felt a shiver go down the length of his spine, feeling Rouge’s lips touch soft as a feather on his members. His body was expecting more punishment, but now, they were going to go on a pleasure ride.
The bat’s tongue made contact with one of the heads, and Knuckles sighed with content as she went on to lick his dick and dickheads. Rouge slithered her tongue all across the echidna’s unit, even the in-between of his prongs, and grasped at the base of the cock as if it were an ice cream cone. 
After spreading her tongue all over, Rouge went to the next step and took the tip of Knux’s rod into her mouth. Knuckles leaned his head back with a moan as the bat went on to suck at his most sensitive glands, with the level of suction he had given to her own. All the while the bat kept giving his penile heads tongue action. 
This blowjob went on for quite a while, Rouge happily absorbing the taste of Knuckles' red rocket into her cheeks. But after the first few sucks, the crimson echidna found himself enjoying the BJ less and less overtime, to the point of boredom. Not that the bat’s blowing was any bad, mind you; Rouge was giving that cock the professional treatment. 
But Knux had received plenty of dick sucking from his mate the past two months, owing to her doing as much to blue up his balls, and she was doing much the same routine. The echidna needed some extra spice for this blowjob to truly get off. And immediately after, Knuckles got an idea for that spice...
“You might want to hold your breath, Rouge. Cause I’m gonna put my dominance into action, and I don’t want you to choke…” 
Rouge raised both brows with a muffled ‘Huh?!’, and had just enough time to do as Knuckles suggested when he placed his hands to the back of her head and pushed her into his crotch, driving his dick deeper into her mouth.  
The echidna let out a hearty moan as he could feel the tip of his cock brushing behind Rouge’s tongue. The bat gagged as her lover shoved his length down her throat, yet there was not a hint of disgust or displeasure in her tone. 
“Mm~! Now I can understand why the guys fantasize about this! Feels so good!” 
Knuckles leaned his head back with his tongue hanging out, and proceeded to pump his member back and forth into Rouge’s gullet. The bat, in turn, relaxed the back of her throat to halt her gag reflex, and could then properly enjoy the fellatio: humming with comfort and sucking down on the echidna’s whole shaft. She could feel the red one’s dick throb and pulse with blood keeping it at full mast. And she could also feel the intricate twitches his cock did to hold back the release.
The far-reaching blowjob lasted for many minutes, Rouge fondling Knux’s submerged nuts the whole while. She could feel they were heavier than a heavy sack of crystals and jewels stolen from a jewel dealer. It made her think happy thoughts of snatching the loot in her tight purse. By that point, the mystical energy had grown in size and hue from the sexual activities brought by the red and purple duo. The energy was like a thick, pink fog that overtook the whole area and anyone could feel the tension held within.
Tikal smiled at their progress. “You’re almost there, you two! Just a little bit more and the baby making can finally start!”
Knux smiled with gleeful intent as he pulled out of her throat with little pain on her part and gave her a moment to catch her breath. He was desperate for one last thing, one that was painful for him before, but now would not be with her lack of spiked bra. Before she became fully aware of what happens, she finds the space between her large cleavage filled with the ruby echidna's sore fella.
Rouge gasped softly at the feeling. “Knux? Are you-”
Knuckles humped up, moaning at her busty bosoms cradling his stiff soreness like two comfy pillows, and she ended up with the heads in her mouth. She did not complain, knowing to lick them as they passed by her mouth.
“Ooooh… I’ve always wanted to feel your fun pillows cradle my cock without those spiky bras. Now that I’m domming, I’m taking my chance!”
Rouge chuckled, happy for her mate, and Knuckles continued to plow his rod on Rouge’s bosom, moaning up a storm as he felt her airbags pleasure him so much. The bat even got along with the act by pushing her tits together for a tighter squeeze on his rod, making the red one fill the room even more with lust and moans. 
The power of Knuckles’ thrusts in between Rouge’s milkmakers, and the two’s lewd cacophony, made the red mystical energy swirl around the area. On seeing this, Tikal flexed her fingers and her hands glowed a light red, then began waving her hands around in the direction the magic energy was flowing. After a moment of this, the spirit teen’s palms turned red, and she immediately clenched her hands into fists, which made the arcane red mist stop its movement. 
Knuckles noticed this development and ceased his ramming of Rouge’s cleavage, and both looked up in awe as Tikal concentrated the lustful energy into a massive orb, which she then split into seven smaller orbs and moved them above the Chaos Emeralds. With a press down of her hands, the clouds of the energy swirled into the Chaos Emeralds, the seven gems sparkling with their infinite power in response. By the end, the crimson energy was gone from the air, and each Chaos Emerald had developed a red aura, which mixed with their existing colors; the yellow Chaos Emerald becoming orange, whilst the red emerald became a darker shade of its color. 
After all that, Tikal dropped her arms down with a grateful ‘Phew!’. “There! The infusion process is completed. And now… We can move onto the last part…” 
Knuckles’ eyes nearly popped out his skull at that revelation, and his quad-pointed pride became thicker from the sudden excitement: something that got a gasp from Rouge, having felt the expansion between her milk sacks. 
“FINALLY~!!!” the insanely horny male shouted, and he looked down at his jugs. “Cry no more, my boys! We’re at last at the moment all this pain and denial had been leading up to!” 
Tikal nodded. “Yes! You two may now lay atop the Master Emerald and become one with each other. However, I’m afraid you’ll have to reign in your enthusiasm, Knuckles! Remember, I have to bless your testicles and all the sperm within for the enchantment to take effect.” 
Knuckles sighed with destitute eyes as he pulled his reddened pink behemoth out from between Rouge’s cleavage. “Right… Gotta hold the swimmers back…” Knux then moved to the bat’s side and extended an arm. “Well, we’ll yield more results if you’re the bottom, Rouge, so ladies first.” 
“Even as a dom, you’re such a gentleman. I knew I fell in love with the right guy.” Rouge brushed her fingers across Knuckles’ scrote as she waded by him, and went towards the Master Emerald in the center of the aqueduct. The silver-haired bat moved underneath one of the ‘waterfalls’ of the arch fountain to soak her head and breasts, shook off the excess, and then climbed atop the massive green crystal. A chill came down Rouge’s spin upon touching the powerful gem. She felt the immense energy reverberating within, and it pulsed against her skin like a heartbeat. The tan, naked beauty could not contain her smile, knowing that she would get to experience this while having sex. 
Rouge lied down onto her back and stretched her legs and arms out to relax her muscles, taking in the soothing energies of the Master Emerald. Then her red mate watched with intent as the nude beauty sat back up, held onto her thighs, and presented her chubby cooch to him. “What are you waiting for? Come on over and put your buns in this oven!” 
With that invitation, Knuckles wasted no time in getting to Rouge as he rushed through the water, jumped atop the gem he had guarded over since his earliest memory, and positioned himself over Rouge. The echidna took a moment to direct his four-headed beast toward Rouge’s birth cave, and then promptly began to prod into it. 
Both Knux and Rouge uttered elated noises at the moment of penis to pussy contact, and only got louder as Knuckles attempted to fit his fat sausage onto Rouge’s compact hole. Key word on ‘attempted’ as, just as the male predicted, it was a tough entry. Knux had to squeeze his penis heads together to get all four into Rouge’s lady hole, after a few quick fails. And it was only because of the cunnilingus and clit sucking that the echidna was able to move the rest of his girth into Rouge’s nether hole. But not without serious effort. 
Rouge practically howled the whole time Knuckles pushed his key into her lock. Her vaginal walls were being stretched to their limit by Knux’ third leg, and she could not be more blissful at the feeling. Even if it was causing her a bit of pain. 
Rouge’s pleasured noise, of course, caught the attention of the surrounding wildlife: the Critters, the Chao, and the Wisps. Even those who were asleep, and remained so despite the bat’s commotion, were awakened by their family and friends to check out what was going on. By the time Knuckles was ninety percent of the way into Rouge, the Chao Garden was surrounded by the tiny creatures, with only Chaos aware of their presence. Most of them began to watch the two with curiosity and intrigue, thanks to their child-like innocence. While those who knew well what was going on and did not leave out of disgust or respect of privacy, watched with varying expressions of enjoyment. 
Very soon after that gathering of voyeurs, Knuckles got pelvis-to-pelvis with Rouge, and both let out a long sigh of satisfaction: the two having become one. After taking a moment to savor the feeling and moment of being fully within Rouge, Knuckles pulled back to test if it was even possible to thrust back and forth within the bat girl. Fortunately, it was possible, but required some of his great strength. 
“Holy crap, Rouge! Even with all that tongue I gave you down there, your puss is clamped around my cock! And you’re not even trying, are you?” Rouge confirmed Knux’s suspicion with a nod. “Wow…! Please don’t hesitate to squeeze down on my dick when the time comes!” The echidna winked to the bat, to which she raised a thumb up. “But it does worry me. Are you sure your pussy will be able to handle the birth?” 
“Well… I won’t be able to know for sure until that time actually comes. But I’m sure my iron lady will do the job! The entire point of labor is for a woman’s body to completely adjust itself for the birth. So my pussy better adjust as well.” 
Knuckles grunted as he slowly began his thrusting. “Mmf~! If you say so…” The man turned his head toward Tikal. “Okay Tikal…” At that moment, though, Knuckles spotted the Critters, Chao, and Wisps watching his and Rouge’s coitus. “What the?! Where’d you all come from?!” 
Rouge lifted her head up and looked around. “Huh. I guess I got too loud earlier…” The bat grinned sheepishly. “Sorry guys! As an apology, you’re all free to watch us make babies!” 
Knuckles swung his face in Rouge’s direction. “Are you serious?! This is a major breach of privacy! I don’t think I can even cum with all of them watching…” 
“Come on, hun! All of these guys wouldn’t hesitate to start having sex in front of us. And it would be a good thing for you to not cum, until after Tikal casts that enchantment.” 
“Urgh… True… Speaking of, as I was about to say…” Knuckles turned back to Tikal. “Ready with that spell Tikal?” 
The aforementioned stood with her legs spread and her hands lifted next to their respective shoulders, with her fingers in meditative gestures. “Hold on…” 
Tikal lifted her chin up, and a red aura manifested around her. The Chaos Emeralds glowed brightly, and right after the orange echidna floated up in the air. The Critters, Chao, and Wisps (especially the Chao) ogled at the hovering spirit girl as she kept her legs spread out, and thus gave all of them a great look at her vulva. 
Tikal lowered her gaze back onto the copulating pair and lightly grinned. “Okay. I have synced up with the Chaos Emeralds, and am ready to cast the enchantment. I just need the thrusts of love to charge up the energy once more!” 
Knuckles turned himself back toward Rouge and tightened his grip on her thighs. “Ooh hoo, I’ve been waiting too long for this…!” The brawny echidna mustered up all of his strength, and then the pounding began. 
Thanks to Rouge’s intense tightness, Knux could not thrust as fast as he wanted to (and he could thrust pretty damn fast). But he was able to make up for this by making his pushes into Rouge deep and powerful. He would pull his cock back at a steady pace, slow enough to get a full feel within Rouge’s tunnel but not mess up the flow. And then once it was just the heads of his dick left within the bat pussy, the male would slam himself forth into the bat, holding himself back just enough to not seriously harm Rouge.
Had the two been making love on a bed, the whole room would be quaking from the power of Knuckles’ thrusts, and the legs of the bed would shatter. Along with the rest of the bed. But whilst the Master Emerald could handle Knuckles’ blows, the water visibly shook from the vibrations of his thrusting. And both Chaos and the voyeuring creatures could feel it as well. 
Rouge gasped and grunted with each heave from her lover, and had to actively brace her entire lower body to endure the brutal punishment her bat hole was taking. And yet, the tan beauty could not be more gleeful as she smiled with her tongue hanging out, and gazed at the action at her nethers with content eyes. 
It helped for the fem-bat that the force of Knuckles’ thrusting made his giant echidna makers slam hard against her butt. Rouge could feel the baby batter slam with gradual increase in force, like when a wave of water crashes onto a shore multiple times in the same splash. And the sound… It was as if someone took a recording of a single slap to Rouge’s rump and edited it to both play in multiple succession over each other and getting louder in volume at the end.
If it was anyone else who did not train as hard as these two did, both genitals and bodies would have shattered from the over excessive force Knux’s ‘steel’ rod was doing to Rouge’s cavern, like a drilling machine digging away a new tunnel for a project. But Rouge had done plenty of leg exercises and training in her life, and plenty of Kegel training to boot, to have a hard rock cavern strong enough to handle the echidna’s plowing. Her tunnel tried its best to stay shut, all to the willing pain and pleasure of Knuckles’ cock, but it started to give, making the bat love it all that much more.
The pounding continued for many minutes to the moaning delight of both the echidna and the bat. By then, the two had become covered in sweat from their lengthy lovemaking; which did not detract from the moment for either of the two, as both happened to find both the appearance and smell of sweat to add to the experience. 
Knuckles was doubly sweaty during the whole sex due to having to hold in his spunk, which was much easier said than done. Having never gotten to orgasm since hitting puberty, and being constantly teased with release for two months, Knux’s groin became like a shaken soda bottle: all it took was for the bottle cap to be slightly turned and all of that baby batter would gush out, and so Knux had to keep his cap tightly shut. 
This strain of his could not only be seen clear as day on his face, but by his balls! Knuckles’ testicles were being lifted up against the bottom of his pelvis by the scrotum. The scrotum was also squeezing itself in, allowing everyone to see the full outline of the echidna’s nuts: including the crossveins that made it additionally obvious that the cum makers were stressed. And the echidna’s love rod had also developed a crossvein from the overload of sexual pressure, and had become a dark shade of red, which onlookers could only see when Knuckles pulled back. 
Speaking of onlookers, the more innocent and curious Critters, Chao, and Wisps watching the baby making began to get aroused by the lustful action in front of them. The male mammalian Critters’s cocks were becoming erect, as did the female’s nipples, while the non-mammal Critters, and the Chao and Wisps, showcased their own ‘physical signs of arousal’. While all those who were aroused from the beginning began to jerk off or have sex with their mates, and decided to do so alongside the echidna and bat. And so those horny creatures watched the couple in anticipation for their climax, so they too would release their love juices. 
And Tikal started to reach her peak with her own arousement. Her cheeks became a darker shade of red from blushing, and the tribal girl began to breathe heavily as she watched Knuckles and Rouge go at each other. A wave of spectral pleasure runs down her from head to toe, erecting her nipples and making her vaginal walls twinge and loosen and start to get wet in excitement. A clear drop of clear ectoplasmic vaginal fluids started to run out from her own hole.
The water god next to her noticed the change in his spectral partner, making him gurgle in worry as to what was happening. Tikal replied with a calm, but lusty demeanor. “I’m fine, Chaos. Just being the conduit of their sexual desires is very pleasurable to say the least.” She rubbed a hand through her braids, moaning a soft noise. “But I must hold back, so I can give them the incantation.” Chaos gurgled out a question, to which Tikal responded. “Think of it like resisting you from flowing out of the only drain around. It’s some sexual act called ‘denial’ or something.”
At this point, to her eyes only, Knux’s and Rouge’s genitals start glowing, signifying their readiness for the enchantment. Tikal hovered closer and started to announce the incantation aloud. “The servers are the seven chaos. Chaos is power, Power enriched by the heart. The controller is the one that unifies the chaos.” She raised her hands into the air, which is thick with the lust of the lovebirds, so much so that it choked the ghostly lady into moaning out the rest of the prayer. “Chaos Emeralds, hear our plea! We are the last of our kind, and our only means to prevent our extinction is breeding with other species!” She then pointed a hand at Knuckles. “Please grant our sole surviving male, and that of his future children, the ability to guarantee his and their children are pure-blooded Echidnas, no matter the species of breeding partner, to ensure our repopulation and safety from extinction. Please have this enchantment last until the Echidnas are restored to a stable population!”
The Chaos Emeralds spun fast on their altars before releasing seven red rays that collide directly above the Master Emerald and its altar that the duo were using as their bed. The rays then shot downwards and bathed the echidna’s balls with waves of their color. To him, it felt as soothing like someone had fondled and caressed his balls to the point where he did not feel the two months of abuse he had suffered. Afterwards, the ray continued past him and entered the Master Emerald, turning it a bright and lusty red. Chaos reacted with a blush growing where his cheeks would be, and the voyeurs of the ritual either started to fully complete their mating or do their actions with much more sexually aggressive tension.
Knuckles lifted his head up, spotting the growing lust on the ghost Tikal. His voice is strained, attempting to hold back a cum which was itching to come out. “Can I… Please release into my wife now?”
Tikal moaned out from her own pleasure. “Almost!” The red echidna groaned in pain. The orange one replied. “I thought of something incredibly useful in this aroused state.”
Rouge groaned out, starting to feel the power of Knuckles’ rod. “Can you please hurry? Iron gives out eventually when heated up!”
“O-Okay! It’s actually a simple one! I can enchant your genitalia to be completely indestructible. You’ll still feel the various pains of love, ballbusting, and birth, but there will be no threat of going too far and breaking them beyond repair.”
Knuckles squeaked between moans, “So Rouge could birth countless children without her pussy becoming damaged?”
Rouge moaned out. “And I can kick, smack and use more dangerous torture devices, and I’d never be able to destroy my mate’s testicles?”
Tikal nodded fast. “All the pleasures and pain of love, black as it can go, and they’ll work like you did nothing to them, no damage at all!”
The duo looked at each other, knowing the answer already and clasped hands together. “Do it!”
Tikal floated down and hummed as she touched Rouge’s vaginal lips and stuck a finger in her vulva with one hand, and cradled Knuckles’ balls and penis with the other. She did not say much for this, only “Master Emerald, make these baby factory parts indestructible!” This time, the red energy flowed from the M.E., into Tikal, and out her hands and enveloped their sex parts in the red light from before. It felt like a pair of masseuse hands ironing out all the kinks and problems in their baby makers, until they felt like they were brand new. With it, it also renewed their sexual vigor to continue fucking.
Tikal moaned out as she floated back to a safer distance. “Done! Fuck away, my horny friends!”
With a short “Thanks”, Knuckles wasted no time replowing into Rouge’s fields, making her moan in fresh delight as her pussy was caving in to the pressure. He moved his legs to be better placed on her legs, getting into a much more pleasurable squat. His penis heads came down on her pussy like a jackhammer chisling through asphalt. Slow but sure, Knuckles dug his way through into the bat’s womb, to her shrieking delight. 
Rouge could barely hold back crying happy tears. “You did it, big boy! You’re in my treasure cavern! Now put your treasure in there!”
Knuckles groaned “Will do!”, as he continues pounding her womb, attempting the start of release. But somehow, it wasn’t coming. The floodgates were opened, but the fluid within acted like it was still held by a wall. As the wait continued, Rouge noticed Knuckles’ worsening grunts.
She asked, with a hint of worry, “Are you alright, sweetie? Why haven’t you released?”
Knuckles groaned. “I am! But… I can’t, somehow.”
Rouge purred. “But you’re the dom, you’re in control.”
Knuckles panted. “I know… But perhaps my genitals don’t know that. After all, you were the dom for the longest time, and spent all that time beating on my balls and playing with my dick…”
Rouge chuckled. “Well then…” She moved her feet to the sides of Knux’s testicles and grasped them by the sides with her soles, to which Knuckles slowed his humping. “Maybe what your instruments need is a little jumpstart…” Rouge reared her feet side to side and slammed them together into both of Knuckles’ jewels. 
Since they were indestructible, they got squished up like two stress balls, making her husband groan in pain and delight. With it, they jolt into action and his four dick heads started pumping out load after load of echidna cum. Rouge came the moment she felt that spunk erupt into herself, and crushed Knuckles’ fruit even harder, which in turn made made Knuckles flood her womb even more. The pressure of Knuckles’ nozzles spraying her womb was so pleasurable, making them moan into the heavens and starry skies above with moans and groans and other animal noises. Knuckles’ balls were so full that it took several minutes to cum it all out. By the end, his legs were so weak from the work that he collapsed onto Rouge, blushing as he laid on her fun bags. She brought her feet back to ground, satisfied.
Of course, all the other critters in the area released their seed too when Knuckles pumped his out, leaving everyone satisfied by the encounter. The most tired of them all was Tikal, whose spiritual orgasm left her pussy squirting plenty of ectoplasmic fluids into the water below her. She floated down and laid in the water, tired from the exhaustive work.
Rouge gave out little bat purrs, Knuckles’ dick heads slowly calmed down in her bat tunnel. She loved how great her man did for her that she brought her hands to his head and started rubbing it in a petting motion, thanking him like one would a pet. She raised her feet and gave his balls a light foot massage. She spoke in a low whisper into Knuckles’ ear. “Great job, my warrior.”
Her other hand then moved to her pussy, and she snuck some fingers down her canal, pleasuring Knux’s heads along the way. She could feel the high level of cum in there without even shoving her whole hand in. “Sheesh, my womb is so bloated, it’s barely a hand’s length away.”
Knuckles chuckled. “Heh, so you’re definitely pregnant, huh?”
Rouge gave a quiet moan as she played around in her vagina and with her man’s softening stick. “I don’t think I even need an OBGYN to tell me I’m pregnant.” She looked at Tikal with a smile. “And I already know that I am going to concieve so many pure echidna babies.” She then shouted for the onlookers. "You hear that, ya voyeurs? We're going to have lots of babies!" 
The crowd onlookers gave a collective cheer of happy animal noises. Chaos gave out happy gurgles and a thumbs up with what opposable fingers he had.
Tikal attempted to get up, but was quite exhausted, so Chaos came over and offered his shoulder to carry her over to the duo. She raised a tired fist in happiness “Congratulations to the happy couple of a lot of kids.”
Knuckles rubbed the back of his head. “Aw, it was nothing. All I did was plow m’lady’s field.”
Rouge smirked. “And a wonderful job you did, I’m cultivated.” She turned to Tikal. “Thank you, Tikal, for giving us such an honor to do it here and all the help you gave along the way.”
Tikal’s cheeks reddened again. “It was no trouble at all.” Chaos made quiet noises, to which Tikal responded. “Yes, yes, we know.” She looked at them. “Chaos says it’s time to get off the Master Emerald, please.”
The red echidna blushed. “Oh yeah, heh, I hope I can get up now.” He had to tug backwards to make Rouge’s cave let him leave her, and as he did, they all saw his baster was covered in a layer of his baby batter. Some of it dripped off onto Rouge’s body, to her blushing amusement, and onto the Master Emerald, which made Chaos roll his yellow ‘eyes’ in quiet annoyance and Tikal blush from just how much he had released. All of them could even see the extreme amount of cream that had started to spill now that Knux was out of Rouge. The bat couldn’t close it by muscle alone, having to use her hand to not let it all spill out.
Rouge smiled. “Whoa! Can’t let any of you swimmers leak out of me!”
Tikal giggled so soft and sweet. “I guess if you need anything else, you know where to find me and Chaos.”
Rouge smirked. “I don’t think we’ll need much. After all…” She grabbed Knuckles now normal shaped orbs tight in her grip that made the echidna stiffen up straight. “... I got some stress relieving balls right here!”
Knuckles gave an ever so weak chuckle, which turned to a groan. “Oh... Joy...”
Rouge smirks with an ever so mischievous grin. "Prepare to share the burdens of pregnancy, Knuckie! Once my belly starts swelling, so too will your precious jewels."